Tag: method of plant breeding for crop improvement

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Questions Related to method of plant breeding for crop improvement

Multiple choice biology breeding and biotechnology method of plant breeding for crop improvement plant breeding for food production biotechnology

Which one of following breeds of cattle is a cross-breed and high milk yielding ?

  1. Sahiwal

  2. Karan-Swiss

  3. Tharparkar

  4. Jersey.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Karan Swiss is the hybrid variety and high milk yielding breed of cow. It is the hybrid breed of Taurine and Zebu. Taurine is used for milk production, while Zebu is used for flesh.

Multiple choice biology breeding and biotechnology method of plant breeding for crop improvement plant breeding for food production biotechnology

Which pathogen causes the blast disease of rice?

  1. Cercospora personata

  2. Pyricularia oryzae

  3. Xanthomonas citri

  4. Tungro virus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Blast disease in rice is caused by the fungus Magnaporthe oryzae which was earlier known as Pyricularia oryzae. Different parts of the plants are affected by the fungus. The blast can occur wherever blast spores are present. Rice can have blast in all growth stages. There are lesions formed on the leaf, panicle and neck region of the plant. There is great loss in yield due to this disease affecting the rice plants.
Thus, the correct answer is option B.